[gcc r14-7628] gccrs: expand: Add missing copyright headers

[Arthur Cohen <cohenarthur@gcc.gnu.org>]

https://gcc.gnu.org/g:10d501fa9b781c571db4ba4c27033b21b3dee422

commit r14-7628-g10d501fa9b781c571db4ba4c27033b21b3dee422
Author: Arthur Cohen <arthur.cohen@embecosm.com>
Date:   Wed May 31 15:12:14 2023 +0200

    gccrs: expand: Add missing copyright headers
    
    Fixes #2250
    
    gcc/rust/ChangeLog:
    
            * expand/rust-macro-invoc-lexer.cc: Add missing copyright header.
            * expand/rust-macro-substitute-ctx.cc: Likewise.

Diff:
---
 gcc/rust/expand/rust-macro-invoc-lexer.cc    | 18 ++++++++++++++++++
 gcc/rust/expand/rust-macro-substitute-ctx.cc | 18 ++++++++++++++++++
 2 files changed, 36 insertions(+)

diff --git a/gcc/rust/expand/rust-macro-invoc-lexer.cc b/gcc/rust/expand/rust-macro-invoc-lexer.cc
index 66a3a6922fc..59d343f86a6 100644
--- a/gcc/rust/expand/rust-macro-invoc-lexer.cc
+++ b/gcc/rust/expand/rust-macro-invoc-lexer.cc
@@ -1,3 +1,21 @@
+// Copyright (C) 2020-2023 Free Software Foundation, Inc.
+
+// This file is part of GCC.
+
+// GCC is free software; you can redistribute it and/or modify it under
+// the terms of the GNU General Public License as published by the Free
+// Software Foundation; either version 3, or (at your option) any later
+// version.
+
+// GCC is distributed in the hope that it will be useful, but WITHOUT ANY
+// WARRANTY; without even the implied warranty of MERCHANTABILITY or
+// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+// for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with GCC; see the file COPYING3.  If not see
+// <http://www.gnu.org/licenses/>.
+
 #include "rust-macro-invoc-lexer.h"
 #include "rust-token.h"
 
diff --git a/gcc/rust/expand/rust-macro-substitute-ctx.cc b/gcc/rust/expand/rust-macro-substitute-ctx.cc
index 84df2c2623e..ed7cf1b2ab5 100644
--- a/gcc/rust/expand/rust-macro-substitute-ctx.cc
+++ b/gcc/rust/expand/rust-macro-substitute-ctx.cc
@@ -1,3 +1,21 @@
+// Copyright (C) 2020-2023 Free Software Foundation, Inc.
+
+// This file is part of GCC.
+
+// GCC is free software; you can redistribute it and/or modify it under
+// the terms of the GNU General Public License as published by the Free
+// Software Foundation; either version 3, or (at your option) any later
+// version.
+
+// GCC is distributed in the hope that it will be useful, but WITHOUT ANY
+// WARRANTY; without even the implied warranty of MERCHANTABILITY or
+// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+// for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with GCC; see the file COPYING3.  If not see
+// <http://www.gnu.org/licenses/>.
+
 #include "rust-macro-substitute-ctx.h"
 
 namespace Rust {